Uneven distances between the edges when extruding
What you're trying to do is a Shrink/Fatten but with a simple series of vertices. I don't think you can do it with simple vertices but you could do it with a trick: Use the faces normals.


Extrude up your mesh.
altE to Extrude Region (Vertex Normals).
Drag to get what you want.
Only keep the shape you want.